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          <mask elevation="03 degrees"
                obs_expected="34362"
                obs_have="28161"
                obs_ratio="81.95" />
          <mask elevation="10 degrees"
                obs_expected="31909"
                obs_have="27998"
                obs_ratio="87.74" />
          <mask elevation="15 degrees"
                obs_expected="27246"
                obs_have="26417"
                obs_ratio="96.96" />
        </observations>
      </control>
    </file>
  </station>
</QC>
